At Poly Bags we offer a wide range of Bubble lined mailing envelops and bags. Also know as bubble lined kraft mailing bags,  these bubble lined mailing envelops - bags have bubble lined interior to provide air-cushioned protection of fragile products like hard drives and CDs etc. 
Some important features of Bubble Lined Mailing Envelops – Bags are:

• Heavy Kraft paper outer cover with reinforced seams
• Light weight and heat sealable
• Specialized fins provide extra protection in bottom and corner impacts
• High slip lining makes insertion and removal of products quick and easy
• Can be heat sealed, tied, stapled or taped shut